51012622 has 8 divisors (see below), whose sum is σ = 76804200. Its totient is φ = 25411224.

The previous prime is 51012617. The next prime is 51012623. The reversal of 51012622 is 22621015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51012622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51012623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46872 + ... + 47947.

It is an arithmetic number, because the mean of its divisors is an integer number (9600525).

Almost surely, 2^51012622 is an apocalyptic number.

51012622 is a deficient number, since it is larger than the sum of its proper divisors (25791578).

51012622 is a wasteful number, since it uses less digits than its factorization.

51012622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95090.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 51012622 is about 7142.3120906328. The cubic root of 51012622 is about 370.8735677368.

Adding to 51012622 its reverse (22621015), we get a palindrome (73633637).

The spelling of 51012622 in words is "fifty-one million, twelve thousand, six hundred twenty-two".